Well, I hate to be the one to tell you but current is electron flow. Electrons carry a negative charge. In other words, if your system has the negative side of the battery to ground or frame, then the current flow is out the negative side of your battery through the various systems and ends up at the positive side of the battery. This ain't no big deal. What I think the guys will want to know is...where did this all start? Did you change some wire or component, or did it just happen. These guys here are really shape, so give them as much infor as you can and they will give you back the things to check and possible causes and effects. Good luck
